.book_classify{
    .book_classify_item{
        height: 100%;
        width: 100%;
        padding: 0.1rem;
        .book_classify_item_box{
            height: 100%;
            width: 100%;
            background-size: cover;
            text-align: left;
            span{
                background: #eee;
                opacity: 0.8;
                padding: 0.1rem; 
                font-size: 0.24rem;
                color: #666;
                line-height: 0.5rem;
            }
        }
    }
}